




SONODYNE HS120
PRICE ON ENQUIRY
SONODYNE HS120: 120 W Class D mixer amplifier, 9 inputs, Bluetooth, MP3 player, tone generator, 4 Ω / 70 V / 100 V, 1RU. Available in India from Shivansh Electronics, Kolkata, West Bengal, India.
VISUAL GUIDE — See Every Photo, Spec & Setup Step (PDF)
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Amplifier
| Description | 120 W mixer amplifier |
| Output power | 120 W (per channel) |
| Output mode | 4 Ω, 70 V, 100 V |
| Frequency response | 4 Ω: 20 Hz - 20 kHz; 100 V: 100 Hz - 16 kHz |
| THD + noise | Below 0.3 % |
| Signal to noise ratio | Above 75 dB |
| Input sensitivity | 0 dBu |
Inputs and features
| Channels | 6 MIC or line; Bluetooth; MP3 and AUX |
| Internal inputs | Bluetooth audio input; MP3 audio input |
| External inputs | 3 XLR / RCA inputs and 3 euro / RCA inputs with MIC / LINE level control; 3.5 mm front panel jack |
| Input connector | 1 x 3 euroblock plug (3.81 mm) |
| Tones | 5 default tones + 11 user customisable tones |
| Bluetooth | Bluetooth 3.0 + EDR supporting A2DP |
General
| Input voltage | 220‑240 V AC, 50‑60 Hz |
| Mounting | 1RU |
| Dimensions (W x H x D) | 438 x 44 x 306 mm |
| Net weight | 5.3 kg |
| Warranty | 2 years |
Product overview
The SONODYNE HS120 is a 120 W Class D mixer amplifier in one rack unit, with 9 audio input channels, Bluetooth, an MP3 player and a tone generator, from the HS Series of AUSTRALIAN MONITOR mixer amplifiers.
The HS Series is AUSTRALIAN MONITOR's next generation of Class D mixer amplifiers, offered with 60, 120, 250 and 500 W of power, all in a one rack unit package. Each model offers 7 external and 2 internal audio input channels, each with individual channel volume, equaliser and gain control. A user customisable tone generator, an MP3 player, a Bluetooth module, a 3.5 mm jack and a USB charger are included as standard. The series suits installations from the boardroom to the classroom, school hall to bar, restaurant or function space.
| Class D output | 120 W |
| Output modes | 4 Ω · 70 V · 100 V |
| Audio input channels | 9 |
| Rack mounting | 1RU |
Key features
- 120 W Class D amplifier stage
- 4 Ω / 70 V and 100 V outputs
- 9 audio input channels: 6 rear, 3.5 mm line, Bluetooth and MP3
- Individual gain / equalisation control on all external audio inputs
- Priority mute control on channels 1-3, with level and time release control
- Magnetic cover for customer concealed EQ and gain controls
- Embedded tone generator for bell / alert / evac / chime / intruder plus 11 fully customisable user tones
- Embedded MP3 player via the onboard SD card socket, supporting random, sequenced and single playback
- Bluetooth 3.0 + EDR audio receiver supporting the advanced audio distribution profile (A2DP)
- Tamper-proof channel attenuation by disabling external volume controls
Front panel
The front carries six channel volume controls with indicators, the MASTER volume, a level meter, the LINE IN 3.5 mm jack, the MP3 player controls (play / pause, forward, back, volume, hold), the SD card socket, Bluetooth ON / OFF and PAIR, a charge-only USB socket, PROTECT and STATUS indicators and the power switch. Behind the magnetic cover are the gain trim, bass and treble controls of each channel, the master gain trim, bass, mid and treble, and the DEF VOL switches.
Rear panel
The rear carries the mains inlet, the loudspeaker screw terminal (C, 4 Ω, 70 V, 100 V), a LOGIC terminal, TONE VOLUME, the PRIORITY level thresholds for CH1-CH3 with release time, MIC / LINE switches, REC OUT (RCA), MIC / LINE 4-6 and LINE OUT euroblocks, LINE inputs 4-6 on RCA and INPUT 1-3 with XLR MIC / LINE and RCA LINE sockets.
Tones, MP3 and Bluetooth
The embedded tone generator provides bell, alert, evac, chime and intruder tones (5 default tones) plus 11 user customisable tones. The MP3 player plays from the onboard SD card socket in random, sequenced or single mode, and the Bluetooth 3.0 + EDR receiver supports A2DP.
In the box
- HS120 mixer amplifier
SONODYNE HS120: frequently asked questions
Which loudspeakers can the HS120 drive?
Its 120 W Class D output drives 4 Ω loudspeakers or 70 V and 100 V loudspeaker lines.
Can a microphone override the music?
Yes. Channels 1-3 have priority mute control with level and time release control.
Which sources can it play without an external player?
MP3 files from an SD card in the onboard socket and audio from a Bluetooth device (A2DP); a 3.5 mm jack on the front takes a line source.
Where can I buy the SONODYNE HS120 in India?
The SONODYNE HS120 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.
Workflow 1: Background music with paging
Restaurants, bars and function spaces.
Connections
| Connect | To |
|---|---|
| Paging microphone | INPUT 1 (XLR, MIC) |
| Music player | Line input (RCA) or LINE IN 3.5 mm |
| Speaker output terminal (C, 4 Ω, 70 V, 100 V) | 100 V loudspeaker line |
Setup
- Connect the paging microphone to INPUT 1 and set it to MIC.
- Connect the music source to a line input.
- Set the priority level threshold and release time for CH1.
- Set channel and master volumes.
Tip: Priority mute works on channels 1-3, with level and time release control.
Workflow 2: Bluetooth and MP3 playback
Venues that play music from a phone or an SD card.
Connections
| Connect | To |
|---|---|
| Phone or tablet | Bluetooth receiver (A2DP) |
| SD card with MP3 files | SD card socket |
Setup
- Switch Bluetooth on and press PAIR.
- Or insert an SD card and choose random, sequenced or single playback.
- Set the level with the channel and master controls.
Tip: The front USB socket is for charging only.
Workflow 3: Classroom and school hall
Schools needing announcements, bells and alerts.
Connections
| Connect | To |
|---|---|
| Microphones | INPUT 1‑3 (XLR) |
| Speaker output terminal (C, 4 Ω, 70 V, 100 V) | 100 V loudspeaker line |
Setup
- Connect the microphones to the XLR inputs and set MIC / LINE.
- Use the tone generator for bells and alerts.
- Set TONE VOLUME at the rear.
Tip: 5 default tones plus 11 user customisable tones are on board.
Workflow 4: Boardroom
Meeting rooms with microphones and a presentation source.
Connections
| Connect | To |
|---|---|
| Table microphones | MIC / LINE inputs |
| Laptop audio | LINE IN 3.5 mm |
Setup
- Connect the microphones and the presentation source.
- Set gain trim, bass and treble behind the magnetic cover.
- Refit the cover.
Tip: The magnetic cover keeps gain and EQ settings out of reach.
Workflow 5: Tamper-proof installation
Public spaces where users should not change levels.
Connections
| Connect | To |
|---|---|
| Front panel | Magnetic cover fitted |
Setup
- Set the channel levels.
- Disable the external volume controls for tamper-proof attenuation.
- Fit the magnetic cover over the gain and EQ controls.
Tip: Channel attenuation stays as set.
Workflow 6: Recording the programme
Installations that keep a recording of announcements or events.
Connections
| Connect | To |
|---|---|
| REC OUT (RCA) | Recorder input |
Setup
- Connect REC OUT to the recorder.
- Set the mix with the channel and master controls.
Tip: REC OUT is on RCA sockets at the rear.








